docs: def nodes_with_role(rolename):
      """Configures a list of nodes that have the given role in their run list"""
      nodes = [n['name'] for n in
               lib.get_nodes_with_role(rolename, env.chef_environment)]
      if not len(nodes):
          print("No nodes found with role '{0}'".format(rolename))
          sys.exit(0)
      return node(*nodes)